Fireproof building construction.



No.840,1l1. PATENTED JAN-.1,1907. C.GOLLINS.

FIREPROOP BUILDING CONSTRUCTION. APPLICATION FILED HAB.12.1906.

EIYTMJ To all whom, it may concern.-

allel strips.

UNITED "STATES I CORNELIUS ooLLnvsoF-sA Francisco, onmromii FmEPnooFeuu-Dme CONSTRUCTION.

Be it known that I, CORNELIUS CoLLINs, a citizen of the United States, residing at. San Francisco, in the county of 'SanFrancisco and State of California, have invented new and useful 1m rovements in Fireproof Building Constructlon, of which the following is a specification. 4

The present invention relates to certain new and useful improvements in constructing the bracing-pieces with self-contained means for facilitating their being secured to an adjacent like iece, whereby the strips are connected toget er to form substantiallya rigid framework for use in a fireproof building construction.

Figure 1 re resents a strip with dotted lines showing t e form of bracing-piece to be out therefrom from a point intermediate of the opposite edges of the strip. Fig.2 illustrates a plurality of parallel strips and their transverse connecting bracing-pieces. Fig. 3 is a view similar to Fig. 2, showing a bracingpiece of slightly-modified form. Fig. 4 shows bracing-piece made separate from the stri s. i Fig. 5 1s a modification.

. T "e strips which I use for my purpose are recognized as having little inherent rigidity. Therefore when set up in a fireproof partition or like constructionthey must be securely braced. Various methods have been employed for forming the tongues or bracingpieces, which extend transversely between and unite adjacent parallel strips, and different plans have been used to secure the free ends of the tongues.

- In the resent construction I form the tongues with what might be termed selfcontained locking means-that is, out of the central portions of the strips A, I cut a T-shaped tongue or brace-B, the len th of which ton e may be equal to or slight y exceedthe distance between two adjacent arcutting out the tongue, may be utilized for pipes, wires, and such conductors as will be ound in modern building constructions. One end of-the tongue isleftattached to the strip and theother or headend is bent outwardly towardthe next. adjacent stri and may be given a partial turn, the metal eing sufiiciently liable for thisqp'urpose to enable the enlarged head 0 to abe assed substantially e ewise through the s ot D of the next strip an then caused toi'assume its normal Specification offiLetter-s Patent: l Application filed amt 12,1906. Serial No. 305.791;

The slot or space D, forme by.

- Patented a... 1, 1907.

position anil lie flat upon the base portion of a corres onding tongue formed from said next strip. hehead of the tongue B is wider than the tongue of the strip to which it is to be secured, and the side flange portions a of said head which extend over and beyond the edges of the tongue C of the next strip A are now bent under the tongue 0 and clamped thereto by means of any tool suitable for this pur ose.

'1 e tongue B being attached at one end to the strip A and the enlarged head of this tongue abutting a ainst the other strip A, it is manifest that w en a'partition is set up in the manner described the several parallel strips, are securely braced against a movement away from each other in the direction of the length of the tongues and thickness of the strips and a sufliciently rigid framework is formed for the plaster, concrete, or other lastic material with which it is to be C0111- bined. If desired, the bracing-pieces may be made of separate pieces E, riveted at one end to one strip and fastened to the next strip, as before described, as shown in Fig. 4, also, if

desired, the bracing-tongue B may be given substantially an L sha e, as in Fig. 3, in which case the said hea may be clamped to the next tongue substantially in the manner before described, and said tongues might even be cut from the edges of the strip, as at F in Fig. 5, without departing from thespirit of my invention. 1

In con'unction with the construction shown an described I employ mortar, concrete, or other plastic material which will afterward harden, and this is spread over and through the structure in the manner common in this art. I

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a fireproof building construct1on, the

combination of parallel metal strips, and.

bracing-tongues extending transversely between adjacent strips said bracing-tongues each. having a transversely-enlarged head forming a flanged portion which is bent around the base portlon of a tongue of an adjacent striip] 2. In aeproof building construction, the combination of parallel stri s and a bracingpiece extending transverse y therebetween,

versely-wi ened head terminating in side ICC ' said bracin -piece of one strip having a trans- ITO flanges which are bent around the edges of a bracing-piece of an adjacent strip.

3. In a fireproof buildin construction the combination of parallel str1 s and a bracing- 5 piece cut from each of sai strips to form a slot said piece remaining attached to the stri at one end and being of substantially T s ape, and having its head portion passed through the slot of the adjacent strip, and the 10 sides of the head portion bent around the tongue of said adjacent strip and locked CORNELIUS COLLINS.

Witnesses:

C. W. FOWLER; TIMOTHY CoLLINs. 

